JPS62258760A - Automatic operation control of beater - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for automatically controlling the operation of a crusher for crushing solid lumps.

[Conventional technology]

Conventionally, solidified materials such as aluminized powder, copper, aluminum, etc., or asphalt φ concrete waste material that has been solidified by Fres are broken into small pieces using a crusher etc. in order to make effective use of them. I was trying to make it possible. As a crusher for crushing the solid lumps, for example, Japanese Patent Application Laid-Open No. 513-10
The one published in Publication No. 2454 is known.

[Problem that the invention seeks to solve]

However, in the above-mentioned conventional crusher, the crushing plate is moved continuously or intermittently to reduce the jamming state.
J! l! The problem was that I couldn't do what I wanted to do.

The present invention solves these conventional problems,
An eleventh object of the present invention is to provide an excellent automatic operation control force υ of a crusher that can avoid the occurrence of a decrease in throughput due to one defective biting in the crushing chamber.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention provides an automatic operation control method for a crusher that generates or stops the crushing motion of a crushing plate using a hydraulic mechanism depending on the crushing status of solid lumps.
The level of solid lumps in the crushing chamber of the crusher is detected and used as a variable for the crushing situation, and the level is compared with a set value to generate or stop the rocking motion.

[For production]

The present invention has the following effects due to the configuration as described below. That is, the rocking motion of the crushing plate of the crusher is controlled to be generated or stopped by a hydraulic mechanism. When the crushing plate is brought into a state where the rocking motion is stopped with a required crushing gap between it and the rotor, and the rotor is rotated to supply the solidified material to the crusher, inside the crushing chamber. Crushing progresses without any stagnation, the biting action between the rotor and the crushing plate is also prevented, and the particles are discharged from the crusher at a constant discharge speed.

The solid mass is divided into smaller pieces and crushed.

Next, there are properties that inhibit the crushing operation.

If solid lumps with a shape of 41 are mixed and fed to the crusher, the progress of crushing in the crushing chamber will be delayed, and if the biting action becomes poor and the discharge speed decreases, the retention value in the crushing chamber will decrease. This leads to an increase in the level of solids. Under such a crushing situation, the level of solids in the crushing chamber is detected based on the population of the crushing chamber and the high level setting value and the low level setting value, which are represented by the respective levels in the vicinity of [1]. When the high level set value is reached, the hydraulic aNM is activated to generate a rocking motion of the crushing plate, and the crushing teeth of the rotor bite into the new surface of the solid mass, causing it to move downward at the same time as crushing. A pushing force is generated, and the solids are caught between the rotor and the crushing plate, and when the crushing plate approaches (advances), the solids apply strong pressure to the rotor and the crushing plate. At the same time, the crushing teeth of the rotor bite into the solid mass.
The solid mass is then caught between the rotor and the crushing plate due to the crushing process of the crushing plate, and is crushed and discharged together with size fine particles by shearing and bending during crushing.

In addition, if the solidified material has completed crushing and has been taken out from the crushing chamber, or if it is discharged from the crushing chamber at a high discharge rate, the level of the solidified material below the low level setting 1 is detected. Then, when the hydraulic mechanism is activated and the swinging motion of the crushing plate is stopped, the crushing plate and the rotor engage in a biting action under the crushing conditions in the predetermined crushing gap, and the crushing will be continued.

Therefore, it is possible to reliably grasp the fluctuations in the state of crushing the solid lumps, and adjust the start or stop of the rocking motion according to the level of the solid lumps, ensuring that they are not caught in the crushing chamber. The crushing process is carried out under sufficient shearing and bending force, allowing the size to be finely divided, and even if there are variations in the shape and properties of the solid lumps, it is possible to avoid a decrease in processing capacity and improve the crushing action. function can be significantly improved.

〔Example〕

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 shows the configuration of an embodiment of the present invention.

In FIG. 1, numeral 10 indicates the lower part of the crusher, l is a rotor equipped with crushing teeth, 2 is a crushing plate equipped with crushing teeth that mesh with the crushing teeth, and crushing plate 2 is With the shaft 9 as a fulcrum, it is possible to perform a rocking motion that allows the rotor 1 to move toward and away from the rotor 1 at will.

S is a crushing gap formed when the crushing plate 2 approaches the rotor l. 5 indicates a hydraulic cylinder, which is connected to the lower end of the crushing plate 2, and includes a hydraulic mechanism 4 and a hydraulic system 4.
4b is a pressure gauge for detecting the oil pressure of the hydraulic system 4a. H is the entry 1 of the crushing chamber 8 of crushing@10
1, which is a high level setting f1 for automatic operation Jln, and the same <, L is a level set near the exit of the crushing chamber 8, and is a low level setting f1 for automatic operation control. It is considered as a level setting value. Reference numeral 21 denotes a solid mass level detection device, from which level signals 22 and 23 at positions corresponding to the above-mentioned high level H and low level L are output. The level detection device 21 uses a tll ff wave method, etc., and is designed to be able to cope with the state of crushing solid lumps without any trouble. 7 shows a control circuit, hydraulic signal 4c,
Signals including level signals 22 and 23 are input,
The operation of the hydraulic mechanism 4 is controlled by the output signal 11 of the control circuit 7.

Next, the operation of the bipedal embodiment will be explained.

The oscillating motion of the crushing plate 2 of the crusher 1O is controlled by a hydraulic mechanism 4 to be generated or stopped. The crushing plate 2 is adjusted to a state where the rocking motion is stopped with a required crushing gap S between it and the rotor l, and the rotor l is rotated to supply the solid material to the crusher lO. Then, the crushing proceeds in the crushing chamber 8 without any stagnation, and the biting action between the rotor 1 and the crushing plate 2 is also prevented, so that the crushing 4210 is continued at a constant discharge speed. It is discharged, and the solid mass is broken down into smaller pieces.

Next, if solid lumps with properties and shapes that obstruct the crushing operation are supplied to the crusher 10, the progress of crushing in the crushing chamber 8 will be delayed, and a jamming effect will occur. If the discharging speed becomes low due to poor quality, the amount of retention in the crushing chamber will increase and the level of solids will rise. Under such a crushing situation, the balance of the factors of crushing performance is disrupted, and the high level H setting value and low level L setting value 4fi, which are represented by the population of the crushing chamber 8 and the respective levels near the output, are , When the level of solid matter in the crushing chamber 8 is detected and reaches the high level H setting value, the hydraulic mechanism 4 is operated via the control circuit 7 to cause the crushing plate 2 to swing. When the 11fI incorporation effect is restored, the crusher 10 is discharged 0 faster under the increased discharge speed,
The above-mentioned increase in stagnation is avoided.

In addition, when the solidified material is discharged from the crushing chamber 8 after completion of crushing, or is discharged from the crushing chamber 8 at a high discharge speed, the level of the solidified mass is lower than the low level L setting value. When it is detected and the swinging motion of the crushing plate 2 is stopped by operating the hydraulic mechanism 4, it returns to the original biting action under a predetermined crushing situation and is ejected from the crushing chamber 8 and crushed. Ru.

The operation by the hydraulic mechanism 4 for generating or stopping the rocking motion of the crushing plate 2 is determined in advance so as to obtain a suitable crushing situation. In addition, when detecting the level of solid lumps, if the above-mentioned high level H setting value or more -L and low level L setting E1 or less are not detected,
The solid lumps are crushed in the crushing chamber 8 under good tf biting action.

Therefore, it is possible to reliably grasp the fluctuations in the state of disintegration of solid agglomerates. tlJiJ! Since the movement is started or stopped according to the level of the solids, it is ensured that they are caught in the crushing chamber 8, and the crushing is performed under sufficient shear φ bending force and the size is reduced. Even if there are variations in the shape and properties of the solid lumps, abnormal conditions due to a decrease in processing capacity can be detected.
This makes it possible to avoid the generation of lumps and significantly improve the functionality of the crushing action.

The embodiments of the present invention are not limited to the embodiments described in (-), and various aspects such as rocking movement, interlocking movement, and adjustment of the crushing gap can be adopted.

〔Effect of the invention〕

As is clear from the above example, undeveloped IJ1 is 1zA
It is possible to reliably grasp changes in the state of crushing of agglomerates,
Since excessive accumulation of solid lumps in the crushing chamber can be suppressed, crushing can be carried out with sufficient adjustment of the clumping state, and even if the shape and properties of the solid lumps change, processing capacity will be reduced. The effects are great, such as being able to avoid the occurrence of abnormal IE and significantly improving the crushing function.

[Brief explanation of drawings]

FIG. 1 is a schematic block diagram of an automatic operation control method for a crusher according to an embodiment of the unreleased machine.

Claims (1)

[Claims] In an automatic operation control method for a crusher in which rocking motion of a crushing plate is generated or stopped by a hydraulic mechanism depending on the crushing status of solid lumps, the level of solid lumps in a crushing chamber of the crusher is controlled. An automatic operation control method for a crusher, characterized in that the level is detected and used as a variable of the crushing situation, and the level is compared with a set value to generate or stop a rocking motion.